San Pedro de Atacama weather in August

In August, San Pedro de Atacama sees average daytime highs of 20°C and overnight lows near 4°C, with 3 mm of precipitation across 0.5 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 86% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of August to 11 h 30 min by month's end. Set against the rest of the year, August is San Pedro de Atacama's 2nd-clearest and 3rd-windiest month. For the whole year in context, see San Pedro de Atacama's year-round climate.

Daytime high
20°
9th warmest
Overnight low
3rd coldest
Precipitation
3 mm
0.5 wet days
Daylight
11 h 12 min
8:01 AM – 7:13 PM
Cloud cover
13%
2nd clearest
Wind
8 km/h
3rd windiest
Solar energy
6.06 kWh/m²
Travel score
8.7
out of 10

San Pedro de Atacama is town in Chile.

Density
4,745/km²
people per km²
Founded
1450

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 20°C through the month.

A typical August day in San Pedro de Atacama reaches about 20°C in the afternoon and slips back to 4°C overnight — a 17°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 23°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C cooler than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1203
2203
3203
4203
5203
6203
7203
8204
9204
10204
11204
12204
13204
14204
15204
16204
17204
18204
19204
20204
21214
22214
23214
24214
25214
26214
27214
28215
29215
30215
31215

How August really feels in San Pedro de Atacama

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

San Pedro de Atacama weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 13°223.813.28.0
Feb25° / 12°284.612.88.0
Mar25° / 11°142.512.28.8
Apr23° / 30.611.59.2
May20° / 30.710.98.6
Jun19° / 20.310.68.2
Jul19° / 20.710.78.2
Aug20° / 30.511.28.7
Sep22° / 20.411.99.2
Oct24° / 00.112.59.5
Nov26° / 10°0013.19.2
Dec26° / 12°20.613.48.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 86% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 5% of August, with mostly cloudy or overcast conditions the remaining 9%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1928
2919
39010
49010
59010
69010
79010
89010
9919
10919
11919
12919
13919
14919
15928
16928
17928
18928
19928
20928
21928
22928
23928
24928
25928
26928
27928
28928
29928
30928
31928

Chance of precipitation in August

Any precipitation

San Pedro de Atacama gets around 3 mm of rain and snow over 0.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 1% and peaks near 2% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
11
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
182
192
202
212
222
232
242
252
262
272
282
292
302
312

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 54 min at the start of August to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over August. Sunrise moves from 8:11 AM to 7:47 AM, and sunset from 7:07 PM to 7:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.98:117:07
210.98:107:07
311.08:107:08
411.08:097:08
511.08:097:09
611.08:087:09
711.08:077:09
811.18:077:10
911.18:067:10
1011.18:057:11
1111.18:057:11
1211.18:047:11
1311.18:037:12
1411.28:027:12
1511.28:027:13
1611.28:017:13
1711.28:007:13
1811.27:597:14
1911.37:587:14
2011.37:587:14
2111.37:577:15
2211.37:567:15
2311.37:557:16
2411.47:547:16
2511.47:537:16
2611.47:527:17
2711.47:517:17
2811.47:507:17
2911.57:497:18
3011.57:487:18
3111.57:477:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 6.06 kWh/m².

For context, solar energy here swings from a low near 4.84 kWh/m² to a high of 9.24 kWh/m² in December across the year — August's 6.06 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.6Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.8Bright
95.8Bright
105.8Bright
115.9Bright
125.9Bright
135.9Bright
146.0Bright
156.0Intense
166.1Intense
176.1Intense
186.1Intense
196.2Intense
206.2Intense
216.3Intense
226.3Intense
236.3Intense
246.4Intense
256.4Intense
266.5Intense
276.5Intense
286.5Intense
296.6Intense
306.6Intense
316.7Intense
Planning a trip in August

Is August a good time to visit San Pedro de Atacama?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.7
Sightseeing
6th-best month of the year
4.7
Beach & pool
9th-best month of the year

August is one of the better times to visit San Pedro de Atacama for general sightseeing.

What to pack for San Pedro de Atacama in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, San Pedro de Atacama sees daytime highs around 20°C and nights near 4°C. Pack sun protection. Worth having: a warm layer.

sun protectiona warm layer

UV index in San Pedro de Atacama in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Pedro de Atacama peaks around January 13 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 13UV 17Jul 10UV 7
UV index (midday)Level
Jan17Extreme
Feb17Extreme
Mar15Extreme
Apr11Extreme
May9Very high
Jun7High
Jul7High
Aug10Very high
Sep13Extreme
Oct15Extreme
Nov16Extreme
Dec17Extreme
Location & terrain

Where is San Pedro de Atacama?

San Pedro de Atacama sits at 22.9°S, 68.2°W, 0 m above sea level, in Chile. The nearest listed city is Calama, 90 km away.

VillazónTupizaUyuniSan Salvador de JujuyPozo Almonte

Topography around San Pedro de Atacama

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Pedro de Atacama.

Within 3 km, the terrain around San Pedro de Atacama has only modest variations in elevation — a maximum elevation change of 228 m around an average of 2,445 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 704 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,696 m.

The land around San Pedro de Atacama is covered by bare terrain (81%) within 3 km, bare terrain (98%) within 16 km, and bare terrain (96%) within 80 km.

3 km
228 m
16 km
704 m
80 km
3,696 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
August weather nearby: Calama 90 km · Tocopilla 224 km · Antofagasta 239 km · Villazón 283 km · Tupiza 303 km · Uyuni 307 km · San Salvador de Jujuy 329 km · Pozo Almonte 338 km

Chile travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
220 V · 50 Hz
Prices
≈ 48% of US
price level, 2025
GDP per capita
$17,995
2025
Happiness
6.3 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
6.3
per 100k, 2023
Road deaths
14.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 517
Religion
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for San Pedro de Atacama (-22.9111°, -68.2011°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).